*5–24. The relay regulates voltage and current. Determine the force in the spring CD, which has a stiffness of k = 120 N>m, so that it will allow the armature to make contact at A in figure (a) with a vertical force of 0.4 N. Also, determine the force in the spring when the coil is energized and attracts the armature to E, figure (b), thereby breaking contact at A.

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*5–24. The relay regulates voltage and current. Determine the force in the spring CD, which has a stiffness of k = 120 N/m, so that it will allow the armature to make contact at A in figure (a) with a vertical force of 0.4 N. Also, determine the force in the spring when the coil is energized and attracts the armature to E, figure (b), thereby breaking contact at A.

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